Center 4 do the first anything call and the resulting Ends (of that
Center 4) move away from the Center of the Set without changing their facing
direction (i.e., Stable). The Others (original Outsides) work around
the Very Centers to do the second anything call, ending as close as
possible to the positions vacated by the resulting Ends of the Center 4.

Reverse Checkpoint Recycle By Touch 1/4:

beforeReverse CheckpointRecycle By Touch 1/4

afterCenters Recycle and the resulting Ends slide away from the center

afterCenters 1/4 Thru and the resulting Ends slide away from the center

afteroriginal Outsides work aroundthe Very Centers to do a Follow Thru

(done)

Dancing Hint: The original Outsides should usually delay moving until the Centers have
almost completed the first anything call, so that sufficient space is
available for the Outsides to execute the second anything call.

Note: The original Center 4 become the Very Centers and Very Outsides of the
final ending formation.

Checkpoint anything By anything[C2](Lee Kopman 1982):
From a 1 x 8, Point-to-Point Diamonds, or any other
applicable formation in which there are Centers of each side.
The Centers of each side work together, concentrically, around the Very
Center dancers, to do the first anything call (if possible ending
so that they have changed the long axis of the starting formation); Remaining
Outsides (2 or 4 dancers) move into the Center (without changing their
facing direction) and work with the original Centermost dancers to do the
second anything call.
Checkpoint anything By anything [C2]